An arithmetical operator used for converting a quantity expressed in a set of unit into an equivalent in another set of units are known as conversion factor.
The base SI units for length is meter, .
The conversion of to other relevant units are as:
So,
Now converting the given units as:
1a.
Since,
So,
2a.
Since,
So,
3a.
4a.
Since,
So,
5a.
6a.
Since,
So,
7a.
8a.
9a.
10a.
Since,
So,
1b.
Since,
So,
2b.
Since,
So,
3b.
4b.
5b.
6b.
7b.
8b.
9b.
10b.
SOlar power is energy collected from the sun, it will last for billions of years whereas fossil fuels are limited by what we have on our planet.
No, all wavelengths/photons of light are emitted from excited electrons.
<h3>What is wavelength?</h3>
Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.
When an atom's electrons move to a lower energy state, the atom releases energy in the form of a photon. Depending on the energy involved in the emission process, this photon may or may not occur in the visible range of the electromagnetic spectrum.
Hence, no, all wavelengths/photons of light are emitted from excited electrons.
Learn more about the wavelength here:
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Answer:
65.4%
Explanation:
The redox reaction is a 1:1:1 reaction because the reagents suffer a double displacement reaction, and the substance that is substituted have the same charge (H+ and Br-), thus, we first need to know which of the reagents is the limiting.
Let's test the 4-nitrobenzaldehyde as the limiting. The mass needed for sodium borohydride (m) is the mass given of 4-nitrobenzaldehyde multiplied by the stoichiometric mass of sodium borohydride divided by the stoichiometric mass of 4-nitrobenzaldehyde. The stoichiometric mass is the number of moles in the stoichiometric representation (1:1:1) multiplied by the molar mass, so:
m = (4.13 * 37.83*1)/(151.12*1)
m = 1.034 g
So, the mass needed of the other reagent is larger than the mass that was given, so, it will be the limiting, and the stoichiometric calculus must be done with it.
The mass of the product that was expected is then:
m = (0.700*153.14*1)/(37.83*1)
m = 2.83 g
The percent yield is the mass that was formed divided by the expected mass, and then multiplied by 100%:
%yield = (1.85/2.83)*100%
%yield = 65.4%
For the answer to the question above, t<span>he energy that is required to break all the carbon-hydrogen bonds in methane is 891 kJ/mol. In 0.1 mol of methane, you would need 89.1 kJ.
I hope my answer helped you. Have a nice day</span>